Lock



Patented Sept. 13, 1932 UNITED STATES c Cl PATENT oi-"rlca EDWARD N. VJAGOZBI, F MILWAUKEE, WISCONSIN, ASSIGNOB T0 BRIGGS & sT ArToN 'COBPORATIQN, OF MILWAUKEE, wIsooNsIN, A CORPORATION or D LAWA LOCK ' Application fil ed. July 29,

This invention. rel-ates to certain newand useful 'imp'rovements'in locks, and has as an object to provide-novel means for protectingthejcylinderagainst destruction and for is maintaining the cylinder assembled with its mounting member,-and is a modification of the structure illustrated in Letters Patent No. 1,714,424, issued May 21, 1929.

Another object. of this. invention is to simm plify and improve the structure oi the look.

i and provide a unique and novel means for facilitating the turning of its cylinder from unlocked to-locked position independently of a ke Aida more specific object of this invention resides in the provision of an improved lock structure ofthe character describediin which the cylinder has an extension or grip portion through whichthekey receiving opening'extends and which projects through a complementary openingin a Cylinder assembling and protecting hood or cap. 1

Vith the above and other, obj (acts in view which will appearas the description prostruction, combination and arrangement of parts substantially as 'hereinafte'r'described and more particularly defined by the appended claims, it being understood that such changes in the precise embodiment of the herein disclosed invention may be made as come withinthe scope of the claims.

In the accompanying drawing, I have illustrated one completeeXa-mpleof the physical embodiment of my invention constructed according to the best mode Ihave so far devised for thepractical application of the principles thereof, and in which:

Figure l is a View, partly in side elevation and partly in section, illustrating a lock structure embodying my invention; 7 c

Figure 2 is a cross sectional view taken through Figure 1 on the plane of the line 7 Figure 3 is a perspective view of the lock structure with the assembling and protecting hood removed, and I Figure 4 is a perspective view of the protecting and assembling hood.

Referring now more particularly to the ac- ,ceeds, my invention resides in the novel con 1929. Serial no. 381,945.

companying drawing, in. which like numerals designate like partsithroughout the several. views, 5 represents a mounting member whose outer end 7 is of a reduced diameter and from which a two-diameter longitudinal bore 6 extends,the juncture of the'two diameters forming a shoulder at theinnerend of. the mounting member.

A-lock cylinder 9 having .a plurality of conventional tumblers 10 is mounted inthe longitudinal bore of the mounting member and is movable from a locked position by the retraction of the tumblerslO within the periphery of'the cylinder upon the insertion of a proper keyllinto the key'receiving 7 opening 12 of the lock cylinder.

When the cyli der is in locked position, the plungers are spring urged into a longi= tudinal groove'13 in the. wall of the bore 6', and when moved to its unlocked position with the assistance of'the key 11 which position in the present instanceis approximately 90 degrees from the locked-position, the lower ends of the plungers align with a second longitudinal groove '14 to'permit movement of the plungers thereinto as thekey is withdrawn. The ends of the plungers, which are uppermost withreference to Figure 2, bear against the cylindrical wall of the bore 6 and are thus held within the periphery of the cylinder so that it is free to be movediltioward locked position independently of the Y- i The innermost end 15 of the cylinder 9 is V of reduced diameter to fit within the reduced portion of the bore '6 with its extreme end face preferably flush "with the end of the mounting member, the shoulder formed at the inner end of the reduced portion 15 abut,- ting the shoulder 8 of the mounting member in the manner illustrated in- Figure 1. A stop 16 is carried by the reduced portion 15 of the cylinder and travels in a reduced or cutaway .portion 17' in the shoulder 8 to limit theirotationof the Cylinder,

As statedytheoutr' end portion of the mounting member is of reduced diameter andhas anannular channel or groove'18 formedtherein at its base to receive clinched or pressed-in portions 19 of a retaining and I protecting hood which fits over the enlarged outer end or head 21 of the cylinder and the reduced portion of the mounting member.

The lock cylinder has an extension 22 projecting from its enlarged outer end 21 which forms a grip or hand engaging portion through which the key slot 12 extends, the extension being preferably at its base of a depth approximately equal to the thickness of the metal of the hood 20..

. which has its end wall 24Vprovided with an opening 25 of a shape complementaryto the shape of the enlarged portion23. The extensionthus. projects through the. hood to I provide a convenient means for rotating the V outer endof the lock cylinder and the mount cylinder from its unlocked position to -its locked position, the hooditurning with the cylinder. 7 Y

' From the foregoingdescription, taken in connection with the accompanying drawing, it will be readily apparent to thoseIsk-illed in the art'to which aninvention of the char acter described appe'rtains, that I provide a novel means for protecting a lock? cylinder against destruction and securing the same assembled, which presents a neat and'attractive appearance and'which materially facilitates the'manipulation of the look from un-' locked to lockedposition independently of its key, and which maybe manufactured at a relatively 10W cost. 1 j l WVhat I claimias'my invention is: 1. Ina lock device, a mounting member, a lock cylinder rotatable therein, an approximately rectangular projection extended from the outerendof the lockcylinder and atall timesprojecting beyond the mounting member, and a cap rotatably fitted over the i'ng member to retain the lock cylinder as sembled inthe mounting member and having an aperture therein complementary and corresponding-1n shape to the enlargement of theloclt cylinder through which said en 7 ing member.

lock cylinder and projecting through an aperture inthe hood and extending at all times beyond the mounting member to provide a gripby which thelock cylinder may be actuated. V

' 3. In a lock device, a mounting member, alock cylinder movable therein and having an enlargementsubstantially;the samesize I artistically shaped and having aslight enlargement23' as the adjacent portion of the mounting member, a cup shaped hood enclosing the enlargement and the adjacent portion of the mounting member, means connecting the cup shaped hood with the mounting member to maintain the lock cylinder and the cup shaped hood assembled with the mounting member, and a projection extended from the enlargement and passing through an aperture in the'closed end of the'cup shaped hood to provide a grip "by which the lock cylinder may be actuated.

.4. In a lock device, a mounting member, a lock cylinder rotatable therein, an enlarged head carried bygthe'lock cylinder, a grip portion having substantially fiat sides projected: from the enlarged head; and through which the key receiving aperture of the lock cylinder extends, and a cup shaped hood hav- 7 ing an. aperturein its closed end of asifze complementary to the-grip portion enclosing g the enlargement of the lock cylinder and the adjacent portion I of the imountingmember,

sembled.

5. In a lock device, a lock cylinder movableth'erein, means at one mounting member, a

and means connecting the-hood with the mounting member to maintain thep'arts as V endLof the lock cylinder} forming a grip by i which the cylinder may be actuated, a-hood member enclosing said end-of the lock cylinder and portion-of the mounting'memb'er;

and having an aperture through which-the I grip means projects, andmeans connecting the hood member with the mounting member to maintain the parts assembled, the hood member beingmovable with the lock cylinder. V

6. In a lockdevice including a mounting "member and a lock cylinder movable inthe mounting member, a projecting enlargement extended fromthe lock cylinder to provide a grip by which the cylinderfmay'b'emoved in the-mounting member in the'performance of its'locking functions, there being-a key receiving opening in the lock cylinder extend ing through said enlargement, and a protect-- ing cap fitted over the outer end of the lock 7 cylinder and the mounting member and having an aperture therein complementary tothe enlargement of the lock cylinder through which said enlargement passes,'the engagement ofsaid enlargement in'the'aper ture holding the protectingcap against move ment with respectto the lock cylinder. I

In testimony whereof I have hereunto at fixed my signature. Y

EDWARD N. JAOOBI. 

